models: rename post/pool archives to post/pool versions.

test/functional/moderator/ip_addrs_controller_test.rb

@@ -4,9 +4,6 @@ module Moderator
   class IpAddrsControllerTest < ActionDispatch::IntegrationTest
     context "The ip addrs controller" do
       setup do
-        PoolArchive.delete_all
-        PostArchive.delete_all
-
         @user = create(:moderator_user, created_at: 1.month.ago)
         as(@user) { create(:comment, creator: @user) }
       end

test/functional/pools_controller_test.rb

@@ -4,7 +4,7 @@ class PoolsControllerTest < ActionDispatch::IntegrationTest
   context "The pools controller" do
     setup do
       mock_pool_archive_service!
-      PoolArchive.sqs_service.stubs(:merge?).returns(false)
+      PoolVersion.sqs_service.stubs(:merge?).returns(false)
       start_pool_archive_transaction
 
       travel_to(1.month.ago) do

test/functional/posts_controller_test.rb

@@ -262,7 +262,7 @@ class PostsControllerTest < ActionDispatch::IntegrationTest
 
     context "revert action" do
       setup do
-        PostArchive.sqs_service.stubs(:merge?).returns(false)
+        PostVersion.sqs_service.stubs(:merge?).returns(false)
         as_user do
           @post.update(tag_string: "zzz")
         end